Дисертації: "Automated software design"

1

Hwang, Yves. "An automated software design synthesis framework." University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0157.

Повний текст джерела

Анотація:

This thesis presents an automated software design synthesis framework known as Project Calliope. This framework aligns with Harel's automated software development process as it addresses the aspect of automating design and implementation. Project Calliope is based on a Statecharts synthesis approach in the literature. The main goal of Project Calliope is to automatically generate testable Unified Modeling Language (UML) Statecharts that are deterministic, visually manageable and UML compliant. In order to minimise design errors in the generated UML Statecharts, Project Calliope supports model checking through Statecharts execution. In addition, executable code is automatically generated based on the synthesised UML Statecharts. This framework seeks to provide a pragmatic design framework that can be readily incorporated into software development methodologies that leverage UML. In this thesis, Project Calliope is applied to three simple applications from Whittle and Schumann's examples and a case study based on a commercial application. They are automatic teller machine, coffee dispenser, an agent application, and a groupware application respectively.

Стилі APA, Harvard, Vancouver, ISO та ін.

2

Adhyapak, Sriram. "ASDN : Automated Software Design Notebook tool." FIU Digital Commons, 1990. http://digitalcommons.fiu.edu/etd/1087.

Повний текст джерела

Анотація:

Software Engineering is one of the most widely researched areas of Computer Science. The ability to reuse software, much like reuse of hardware components is one of the key issues in software development. The object-oriented programming methodology is revolutionary in that it promotes software reusability. This thesis describes the development of a tool that helps programmers to design and implement software from within the Smalltalk Environment (an Object- Oriented programming environment). The ASDN tool is part of the PEREAM (Programming Environment for the Reuse and Evolution of Abstract Models) system, which advocates incremental development of software. The Asdn tool along with the PEREAM system seeks to enhance the Smalltalk programming environment by providing facilities for structured development of abstractions (concepts). It produces a document that describes the abstractions that are developed using this tool. The features of the ASDN tool are illustrated by an example.

Стилі APA, Harvard, Vancouver, ISO та ін.

3

Vasylenko, Oleksii, Viktor Chuprynka, and Natalia Chuprynka. "Mathematical software for automated gloves design." Thesis, Київський національний університет технологій та дизайну, 2021. https://er.knutd.edu.ua/handle/123456789/19096.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

4

Shaw, Hazel Anne. "Automated test of evolving software." Thesis, University of Bedfordshire, 2005. http://hdl.handle.net/10547/305743.

Повний текст джерела

Анотація:

Computers and the software they run are pervasive, yet released software is often unreliable, which has many consequences. Loss of time and earnings can be caused by application software (such as word processors) behaving incorrectly or crashing. Serious disruption can occur as in the l4th August 2003 blackouts in North East USA and Canadal, or serious injury or death can be caused as in the Therac-25 overdose incidents. One way to improve the quality of software is to test it thoroughly. However, software testing is time consuming, the resources, capabilities and skills needed to carry it out are often not available and the time required is often curtailed because of pressures to meet delivery deadlines3. Automation should allow more thorough testing in the time available and improve the quality of delivered software, but there are some problems with automation that this research addresses. Firstly, it is difficult to determine ifthe system under test (SUT) has passed or failed a test. This is known as the oracle problem4 and is often ignored in software testing research. Secondly, many software development organisations use an iterative and incremental process, known as evolutionary development, to write software. Following release, software continues evolving as customers demand new features and improvements to existing ones5. This evolution means that automated test suites must be maintained throughout the life ofthe software. A contribution of this research is a methodology that addresses automatic generation of the test cases, execution of the test cases and evaluation of the outcomes from running each test. "Predecessor" software is used to solve the oracle problem. This is software that already exists, such as a previous version of evolving software, or software from a different vendor that solves the same, or similar, problems. However, the resulting oracle is assumed not be perfect, so rules are defined in an interface, which are used by the evaluator in the test evaluation stage to handle the expected differences. The interface also specifies functional inputs and outputs to the SUT. An algorithm has been developed that creates a Markov Chain Transition Matrix (MCTM) model of the SUT from the interface. Tests are then generated automatically by making a random walk of the MCTM. This means that instead of maintaining a large suite of tests, or a large model of the SUT, only the interface needs to be maintained.

Стилі APA, Harvard, Vancouver, ISO та ін.

5

Flobakk, Rune. "Automated verification of design adherence in software implementation." Thesis, Norwegian University of Science and Technology, Department of Computer and Information Science, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-8808.

Повний текст джерела

Анотація:

Software design and architecture specify how a system should be implemented to achieve the required quality attributes. Being able to automatically verify the design adherence during implementation will continuously assure that the system realizes the quality attributes, as well as over time does not drift away from them. This thesis investigates how a software design can be used to automatically verify and enforce rules for implementation. The current tool support for automatic design enforcement is assessed and reviewed. In addition, a prototype contribution to this practice, a plug-in for the Maven software project management system, is presented.

Стилі APA, Harvard, Vancouver, ISO та ін.

6

Gump, Brandon Adam. "Automated Transforms of Software Models: A Design Pattern Approach." Wright State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=wright1260287805.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

7

Egerton, David. "Automated generation of SW design constructs from MESA source code /." Online version of thesis, 1993. http://hdl.handle.net/1850/12144.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

8

Byström, Markus. "Design and realisation of an automated software testing system utilizing virtual machines." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-154480.

Повний текст джерела

Анотація:

Modern mjukvara körs ofta i många olika miljöer vilket ställer höga krav på testning och kvalitetssäkring. Mjukvara som löpande förvaltas måste testas regelbundet för att säkerställa kompatibiliteten till de miljöer eller plattformar som den används i. Detta kan knyta upp stora mängder resurser i form av mantimmar för testare och hårdvarutillgänglighet. Genom att testa virtuellt är det möjligt att automatisera stora delar av processen på ett enkelt sätt och i och med det effektivisera testningen. I det här examensarbetet designades, implementerades och utvärderades ett automatiserat testsystem som utnyttjar virtuella maskiner åt Scania på avdelningen för Diagnostic Communication and Software Download, RESC. Det implementerade testsystemet möjliggjorde dagliga regressions- och installationstester på alla de plattformar som mjukvarukomponenten SCOMM, Scania Communication Module, används i. Vissa smärre svårigheter märktes av som att några Windows-versioner uppförde sig på lite olika sätt angående rättigheter och beteende samt att det trots den låga overheaden i de virtuella maskinerna kunde uppstå timingproblem i ett fåtal testfall, vilket ledde till att de stundtals kunde misslyckas. Genom att parallellt köra tester i olika operativsystem kunde flera tester utföras på kortare tid än förut. Testtillförlitligheten ökade också i och med att alla testkörningar varje gång kunde utgå från samma tillstånd av de virtuella maskinerna. Arbetstiden för installation och underhåll av testmiljön kan minskas i och med att många virtuella maskiner kan samexistera på en fysisk maskin.
Modern software is often run in many different environments which puts high demands on testing and quality assurance. Continuous testing of software during the software development cycle is necessary in order to ensure the compatibility between the software and the different environments or platforms in which the software is used. This may require signicant resources in the form of man hours for testers and hardware availability. By testing in virtual environments it is possible to automate most of this process in an easy way and thus make testing more efficient. In this master thesis an automated test system utilizing virtual machines was designed, implemented and evaluated for Scania at its department for Diagnostic Communication and Software Download, RESC. The implemented test system enabled regression and installation testing of the software component SCOMM, Scania Communication Module, to be performed on all the supported platforms on a daily basis. Some minor difficulties were experienced such as some versions of the Windows operating system behaving differently regarding to permissions and operation and also that despite the low overhead of the virtual machine some timing issues were noticed in a few test cases which led them to intermittently fail. By testing software in different operating systems in parallel, it was possible todo more testing in less time than before. Testing reliability was increased due to every test starting from a known state of the virtual machines. The time spent on setup and maintenance of the testing environment can be decreased since multiple virtual machines can co-exist on one physical machine.

Стилі APA, Harvard, Vancouver, ISO та ін.

9

Magnusson, Elias, and Samuel Svensson. "Automated characterization of printed electronics." Thesis, Linköpings universitet, Fysik och elektroteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-150139.

Повний текст джерела

Анотація:

This thesis was conducted to provide an automated method for characterization of printed electronics. The work was built on a multi-axis milling machine. Further, the machine was modified by replacing the milling-tool with an installment utilizing electrical probing. Different measurement techniques, machine vision applications, and software solutions were evaluated and utilized. All the revolving functionalities of this project was then merged into a complete system, controlled by a graphical user interface. The resulting system was capable of autonomously characterize a given number of components on a printed sheet. The final version of the system is capable of finding the origin of the sheet by using machine vision and fiducial markers.

Стилі APA, Harvard, Vancouver, ISO та ін.

10

Gündüz, Mustafa Emre. "Software integration for automated stability analysis and design optimization of a bearingless rotor blade." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33916.

Повний текст джерела

Анотація:

The concept of applying several disciplines to the design and optimization processes may not be new, but it does not currently seem to be widely accepted in industry. The reason for this might be the lack of well-known tools for realizing a complete multidisciplinary design and analysis of a product. This study aims to propose a method that enables engineers in some design disciplines to perform a fairly detailed analysis and optimization of a design using commercially available software as well as codes developed at Georgia Tech. The ultimate goal is when the system is set up properly, the CAD model of the design, including all subsystems, will be automatically updated as soon as a new part or assembly is added to the design; or it will be updated when an analysis and/or an optimization is performed and the geometry needs to be modified. Such a design process takes dramatically less time to complete; therefore, it should reduce development time and costs. The optimization method is demonstrated on an existing helicopter rotor originally designed in the 1960's. The rotor is already an effective design with novel features. However, application of the optimization principles together with high-speed computing resulted in an even better design. The objective function to be minimized is related to the vibrations of the rotor system under gusty wind conditions. The design parameters are all continuous variables. Optimization is performed in a number of steps. First, the most crucial design variables of the objective function are identified. With these variables, Latin Hypercube Sampling method is used to probe the design space of several local minima and maxima. After analysis of numerous samples, an optimum configuration of the design that is more stable than that of the initial design is reached. The process requires several software tools: CATIA as the CAD tool, ANSYS as the FEA tool, VABS for obtaining the cross-sectional structural properties, and DYMORE for the frequency and dynamic analysis of the rotor. MATLAB codes are also employed to generate input files and read output files of DYMORE. All these tools are connected using ModelCenter.

Стилі APA, Harvard, Vancouver, ISO та ін.

11

Grayson, Marisa Rose. "Approaching Overload: Diagnosis and Response to Anomalies in Complex and Automated Production Software Systems." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1543495231467142.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

12

Rogers, Craig N. "Object-oriented design of an automated calibration system for an analog I/O process control device." [Denver, Colo.] : Regis University, 2006. http://165.236.235.140/lib/CRogers2007.pdf.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

13

Petersén, Elin. "Examining maintenance cost of automated GUI tests : An empirical study of how test script design affects the maintenance of automated visual GUI tests." Thesis, Linköpings universitet, Programvara och system, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-171783.

Повний текст джерела

Анотація:

GUI testing is expensive to perform manually. Software systems involving a heterogeneous set of components exclude the applicability of specific GUI testing techniques. Visual GUI Testing (VGT) is a test automation technique that combines image recognition with scripts. It applies to almost any GUI driven application. VGT is proven to be cost-effective in comparison with manual testing. Still, it is expensive to maintain. This study investigates if test script design by following specific guidelines positively affects maintenance costs. A case study was conducted to identify best practices for VGT w.r.t. maintenance time. Four VGT versions were developed for each manual test case. These consisted of two design versions, with/without guidelines, for the two VGT-tools EyeAutomate and Sikuli. Data was collected using time measurements, observations, and interviews. Results highlighted differences in initial development time and maintenance time between the two design versions. In total, 44 observations were collected. 17 were related to the design versions, 17 to the VGT-tools, and 10 to VGT in general, initial development, and the system under test. The interviews collected the perceptions of VGT in general, maintenance of the different VGT versions, and guidelines. In conclusion, the combination of the guidelines did not have a positive effect on maintenance in terms of costs and experience. However, some of the individual guidelines did. A rationale why the guidelines did not give the desired result was identified. Future research is necessary to investigate other combinations of guidelines, such as those identified as beneficial.

Стилі APA, Harvard, Vancouver, ISO та ін.

14

Roslund, Anton. "Evaluation of Automated Test Generation for Simulink : A Case Study in the Context of Propulsion Control Software." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-48426.

Повний текст джерела

Анотація:

Automated Test Generation (ATG) has been successfully applied in many domains. For the modeling and simulation language Simulink, there has been research on developing tools for ATG with promising results. However, most tools developed as part of academic research and are not publicly available, or severely limited in their ability to be integrated into an industrial workflow. There are commercial ATG tools for Simulink, with Simulink Design Verifier (SLDV) as the de-facto standard tool. For this thesis, we perform an empirical comparison of manual tests to those generated by SLDV. For the comparison, we used 180 components from the propulsion control software developed by our industry partner. All except two components are compatible for test generation to some extent. The majority of components are partially compatible, requiring block replacement or stubbing. Approximation of floating-point numbers is the primary reason for block replacement, which can be performed automatically by SLDV. Two components were incompatible, and 14 required full stubbing of blocks. Using a pre-processing step, the generated tests achieve similar coverage as the manual tests. We performed a Mann–Whitney U test with the hypothesis that the generated tests achieve higher coverage than the manual tests. There are no statistically significant differences for either decision coverage (0.0719), or condition coverage (0.8357). However, for Modified Condition/Decision Coverage, the generated tests achieve higher coverage, and the difference is significant (0.0027). The limitations of ATG were explored by looking at the cases where the generated tests achieved lower coverage than the manual test. We found that the use of floating-point arithmetic and temporal logic increases the time required for test generation, and causes the analysis to hit the time limit. The test generation does not support all custom S-functions and perform stubbing of these blocks. This made the tool unable to reason about persistent storage. Configuration constants have limited support, which was the reason for the coverage difference in three cases. We have concluded that while much effort is required for custom tooling and initial setup, ATG can prove useful for early fault detection in an industrial workflow. ATG would prove especially useful in an automated continuous integration workflow for integration-level conformance testing.

Стилі APA, Harvard, Vancouver, ISO та ін.

15

Gustafsson, Marcus, and Oscar Holm. "Fuzz testing for design assurance levels." Thesis, Linköpings universitet, Programvara och system, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-138841.

Повний текст джерела

Анотація:

With safety critical software, it is important that the application is safe and stable. While this software can be quality tested with manual testing, automated testing has the potential to catch errors that manual testing will not. In addition there is also the possibility to save time and cost by automating the testing process. This matters when it comes to avionics components, as much time and cost is spent testing and ensuring the software does not crash or behave faulty. This research paper will focus on exploring the usefulness of automated testing when combining it with fuzz testing. It will also focus on how to fuzzy test applications classified into DAL-classifications.

Стилі APA, Harvard, Vancouver, ISO та ін.

16

Doungsa-ard, Chartchai. "Generation of Software Test Data from the Design Specification Using Heuristic Techniques. Exploring the UML State Machine Diagrams and GA Based Heuristic Techniques in the Automated Generation of Software Test Data and Test Code." Thesis, University of Bradford, 2011. http://hdl.handle.net/10454/5380.

Повний текст джерела

Анотація:

Software testing is a tedious and very expensive undertaking. Automatic test data generation is, therefore, proposed in this research to help testers reduce their work as well as ascertain software quality. The concept of test driven development (TDD) has become increasingly popular during the past several years. According to TDD, test data should be prepared before the beginning of code implementation. Therefore, this research asserts that the test data should be generated from the software design documents which are normally created prior to software code implementation. Among such design documents, the UML state machine diagrams are selected as a platform for the proposed automated test data generation mechanism. Such diagrams are selected because they show behaviours of a single object in the system. The genetic algorithm (GA) based approach has been developed and applied in the process of searching for the right amount of quality test data. Finally, the generated test data have been used together with UML class diagrams for JUnit test code generation. The GA-based test data generation methods have been enhanced to take care of parallel path and loop problems of the UML state machines. In addition the proposed GA-based approach is also targeted to solve the diagrams with parameterised triggers. As a result, the proposed framework generates test data from the basic state machine diagram and the basic class diagram without any additional nonstandard information, while most other approaches require additional information or the generation of test data from other formal languages. The transition coverage values for the introduced approach here are also high; therefore, the generated test data can cover most of the behaviour of the system.

Стилі APA, Harvard, Vancouver, ISO та ін.

17

Whitehead, James Norman. "Applications of process-oriented design." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:ef8b093c-312f-4e95-a3a2-e874af0cd0a0.

Повний текст джерела

Анотація:

Concurrency is generally considered to be difficult due to a lack of appropriate abstraction, rather than inherent complexity. Lock-based approaches to mutual exclusion are pervasive, despite the presence of models that are easier to understand, such as the message-passing model present in CSP (Communicating Sequential Processes). CSP provides a rich framework for building and reasoning about concurrent systems, but has historically required a change of programming language or paradigm in order to work with it. The Go programming language is a modern, imperative programming language that includes native support for processes and channels. The popularity of this language has grown and more and more people are being exposed to the fundamental ideas of CSP. There is a gap in the understanding of how a restrictive formal model can interact with and support the development of concurrent programs in a language such as Go. Through a series of case studies and analysis, we show how the CSP concurrency model can be used as the basis for the design of a concurrent system architecture without requiring the program to be written entirely as the composition of processes. It is also possible to use the CSP process algebra to build abstract models and use model-checking tools to verify properties of a concurrent system. These models can then be used to guide the decomposition of a system into a more fine-grained concurrent system. This thesis bridges the gap between the development of CSP-style concurrent software and the formal model of CSP. In particular, it shows how it is not necessary for a program or programming language to conform to rigid structure in order for CSP to be a useful tool for the development of reliable and easy to understand concurrent systems.

Стилі APA, Harvard, Vancouver, ISO та ін.

18

Alvero, Aaron J. "Efficacy and Implementation of Automated Essay Scoring Software in Instruction of Literacies to High Level ELLs." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/2569.

Повний текст джерела

Анотація:

This thesis explored the integration of automated essay scoring (AES) software into the writing curriculum for high level ESOL students (levels 3, 4, and 5 on a 1-5 scale) at a high school in Miami, Fl. Issues for Haitian Creole speaking students were also explored. The Spanish and Haitian Creole speaking students were given the option to write notes, outlines, and planning sheets in their L1. After using AES in the middle of the writing process as a revision assistant tool, 24 students responded to a Likert Scale questionnaire. The students responded positively to the AES based on the results of the Likert scale questionnaire: 71% responded “agree” and “strongly agree” to the question “Other students would benefit from using writing software before handing in a final draft.” Also, the majority reported that they valued teacher feedback. None of the students chose to use their L1 to write notes/outlines.

Стилі APA, Harvard, Vancouver, ISO та ін.

19

Moura, César. "Conceiving and Implementing a language-oriented approach for the design of automated learning scenarios." Phd thesis, Université des Sciences et Technologie de Lille - Lille I, 2007. http://tel.archives-ouvertes.fr/tel-00156874.

Повний текст джерела

Анотація:

Cette thèse a pour sujet la conception de scénarios pédagogiques destinés à l'e-formation. Afin de faciliter les échanges de matériaux décrivant des stratégies pédagogiques, la communauté s'est récemment mobilisée pour proposer un langage standard suffisamment générique pour permettre la représentation de n'importe quel scénario, indépendant même du paradigme éducationnel sous-jacent. Appelé génériquement Educational Modeling Language (EML), ce type de langage engendre une nouvelle façon de concevoir des EIAH, en s'éloignant du traditionnel Instructional System Design, une fois que, au lieu de proposer une application finie, les EML proposent un modèle conceptuel standard, une notation pour l'exprimer et des éditeurs et frameworks, laissant aux concepteurs finaux la tâche de créer leurs propres « applications ». Les EMLs permettent alors la création et exécution d'instances de scénarios, dans une approche plus ouverte et flexible, augmentant, ainsi, les possibilités d'adaptation des applications résultantes aux besoins des usagers.
Cette flexibilité reste pourtant limitée et, après quelques années de recherche, les EMLs commencent à montrer ses faiblesses. En fait, le langage choisi pour devenir le standard du domaine, le IMS-LD, s'est montré générique, certes, mais peu expressive, ne permettant pas une représentation fidèle des divers scénarios existants. C'est à dire, c'est aux usagers de s'adapter à la syntaxe et sémantique de cet standard.
Cette thèse part d'un constat quant aux difficultés du processus de conception lui-même, et aux risques de coupure qu'il peut y avoir entre pédagogues et développeurs de logiciels. Pour améliorer la capacité des équipes pédagogiques à pouvoir spécifier, et même implémenter, des scénarios pédagogiques, nous proposons une approche où c'est l'EML qui doit s'adapter aux besoins de l'usager. L'usager a la possibilité de créer son propre langage (ou ses propres langages), s'il en a besoin. En plus, un même scénario peut être décrit en même temps par des différents EMLs (ou modèles) respectant des différents perspectives - et même paradigmes - de chaque stake holder.
Cette approche, appelée multi-EML, est possible grâce aux avancées récentes du génie logiciel, telle l'Architecture Dirigée par les Modèles – l'implémentation la plus connue d'un nouvel paradigme de programmation surnommé Languages Oriented Programming (LOP), qui inclut encore d'autres implémentations.
Notre proposition réside dans la conception d'un environnement informatique « auteur », qui repose sur les principes des Languages Oriented Programming, en utilisant la plateforme ouverte ECLIPSE et, plus particulièrement son implémentation du LOP, l'Eclipse Modeling Framework (EMF). Ainsi, les concepteurs auront un outil qui leur permettra de créer des spécifications formelles décrivant les scénarios envisagés et d'en générer automatiquement des applications correspondantes, dans un processus qui démarre avec les descriptions informelles des experts du domaine.
Reconnaissant que les experts d'éducation - ceux qui mieux comprennent le domaine - ne sont pas nécessairement des informaticiens, l'environnement proposé, appelé MDEduc, fournit aussi un éditeur permettant de décrire un scénario dans une notation informelle, à savoir le pattern pédagogique, à partir de laquelle les modèles formels peuvent être dérivés. En plus, nous proposons de garder côte à côte et en coïncidence ces descriptions en langage informelles, et les descriptions plus formelles et normatives et d'offrir la possibilité d'effectuer des allers-retours à toutes les phases du cycle de vie du dispositif pédagogique.

Стилі APA, Harvard, Vancouver, ISO та ін.

20

Alomari, Mohammad Hani. "Engineering system design for automated space weather forecast : designing automatic software systems for the large-scale analysis of solar data, knowledge extraction and the prediction of solar activities using machine learning techniques." Thesis, University of Bradford, 2009. http://hdl.handle.net/10454/4248.

Повний текст джерела

Анотація:

Coronal Mass Ejections (CMEs) and solar flares are energetic events taking place at the Sun that can affect the space weather or the near-Earth environment by the release of vast quantities of electromagnetic radiation and charged particles. Solar active regions are the areas where most flares and CMEs originate. Studying the associations among sunspot groups, flares, filaments, and CMEs is helpful in understanding the possible cause and effect relationships between these events and features. Forecasting space weather in a timely manner is important for protecting technological systems and human life on earth and in space. The research presented in this thesis introduces novel, fully computerised, machine learning-based decision rules and models that can be used within a system design for automated space weather forecasting. The system design in this work consists of three stages: (1) designing computer tools to find the associations among sunspot groups, flares, filaments, and CMEs (2) applying machine learning algorithms to the associations' datasets and (3) studying the evolution patterns of sunspot groups using time-series methods. Machine learning algorithms are used to provide computerised learning rules and models that enable the system to provide automated prediction of CMEs, flares, and evolution patterns of sunspot groups. These numerical rules are extracted from the characteristics, associations, and time-series analysis of the available historical solar data. The training of machine learning algorithms is based on data sets created by investigating the associations among sunspots, filaments, flares, and CMEs. Evolution patterns of sunspot areas and McIntosh classifications are analysed using a statistical machine learning method, namely the Hidden Markov Model (HMM).

Стилі APA, Harvard, Vancouver, ISO та ін.

21

Alomari, Mohammad H. "Engineering System Design for Automated Space Weather Forecast. Designing Automatic Software Systems for the Large-Scale Analysis of Solar Data, Knowledge Extraction and the Prediction of Solar Activities Using Machine Learning Techniques." Thesis, University of Bradford, 2009. http://hdl.handle.net/10454/4248.

Повний текст джерела

Анотація:

Coronal Mass Ejections (CMEs) and solar flares are energetic events taking place at the Sun that can affect the space weather or the near-Earth environment by the release of vast quantities of electromagnetic radiation and charged particles. Solar active regions are the areas where most flares and CMEs originate. Studying the associations among sunspot groups, flares, filaments, and CMEs is helpful in understanding the possible cause and effect relationships between these events and features. Forecasting space weather in a timely manner is important for protecting technological systems and human life on earth and in space. The research presented in this thesis introduces novel, fully computerised, machine learning-based decision rules and models that can be used within a system design for automated space weather forecasting. The system design in this work consists of three stages: (1) designing computer tools to find the associations among sunspot groups, flares, filaments, and CMEs (2) applying machine learning algorithms to the associations¿ datasets and (3) studying the evolution patterns of sunspot groups using time-series methods. Machine learning algorithms are used to provide computerised learning rules and models that enable the system to provide automated prediction of CMEs, flares, and evolution patterns of sunspot groups. These numerical rules are extracted from the characteristics, associations, and time-series analysis of the available historical solar data. The training of machine learning algorithms is based on data sets created by investigating the associations among sunspots, filaments, flares, and CMEs. Evolution patterns of sunspot areas and McIntosh classifications are analysed using a statistical machine learning method, namely the Hidden Markov Model (HMM).

Стилі APA, Harvard, Vancouver, ISO та ін.

22

Debnath, Jayanta Kumar. "Development of Scheduling, Path Planning and Resource Management Algorithms for Robotic Fully-automated and Multi-story Parking Structure." University of Toledo / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1470399189.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

23

Томишин, Юрій Васильович. "Засоби розроблення паралельних програм для метеорологічного прогнозування". Master's thesis, Київ, 2018. https://ela.kpi.ua/handle/123456789/25575.

Повний текст джерела

Анотація:

Виконане автоматизоване конструювання високорівневих алгебро-алгоритмічних специфікацій програмного забезпечення для розв’язання задачі метеорологічного прогнозування. Виконана генерація програмного коду за побудованими специфікаціями на основі використання розроблених інструментальних засобів автоматизованого проектування та синтезу програм. Проведено експеримент з виконання згенерованої паралельної програми метеорологічного прогнозування на багатоядерній платформі Intel Xeon Phi. Загальний обсяг роботи: 82 c., 5 рис., 29 табл., 30 джерел.
The computer-aided design of high-level algebra-algorithmic specifications of the software for solving the problem of meteorological forecasting is performed. Generation of the program code behind the constructed specifications on the basis of use of the developed tools of computer-aided design and synthesis of programs is executed. An experiment was carried out to implement the generated parallel program of meteorological forecasting on the Intel Xeon Phi multicore platform. Total amount of work: 82 p., pic 5, 29 tables., 30 links.
Выполнено автоматизированное конструирование высокоуровневых алгебро-алгоритмических спецификаций программного обеспечения для решения задачи метеорологического прогнозирования. Выполнена генерация кода по построенным спецификациями на основе использования разработанных инструментальных средств автоматизированного проектирования и синтеза программ. Проведен эксперимент по выполнению сгенерированной параллельной программы метеорологического прогнозирования на многоядерной платформе Intel Xeon Phi.

Стилі APA, Harvard, Vancouver, ISO та ін.

24

Ferreira, silva Eduardo. "Conception d’architecture de système-de-systèmes à logiciel prépondérant dirigée par les missions." Thesis, Lorient, 2018. http://www.theses.fr/2018LORIS509/document.

Повний текст джерела

Анотація:

La formulation des missions est le point de départ du développement de systèmes-de- systèmes, étant utilisée comme base pour la spécification, la vérification et la validation d’architectures de systèmes-de-systèmes. Élaborer des modèles d’architecture pour systèmes-de-systèmes est une activité complexe, cette complexité reposant spécialement sur les comportements émergents, c'est-à-dire, des comportements issus des interactions entre les parties constituantes d’un système-de-systèmes qui ne peuvent pas être prédits même si on connaît tous les comportements de tous les systèmes constituants. Cette thèse adresse le lien synergique entre mission et architecture dans le cadre des systèmes-de-systèmes à logiciel prépondérant, en accordant une attention particulière aux comportements émergents créés pour réaliser les missions formulées. Nous proposons ainsi une approche pour la conception d’architecture de systèmes-de-systèmes dirigée par le modèle de mission. Dans notre approche, le modèle de mission sert à dériver et à valider les architectures de systèmes-de-systèmes. Dans un premier temps, nous générons la structure de l’architecture à l’aide de transformations de modèles. Ensuite, lors que l’architecte spécifie les aspects comportementaux, la description de l’architecture résultante est validée à l’aide d’une démarche conjointe qui comprend à la fois la vérification des propriétés spécifiées et la validation par simulation des comportements émergents. La formalisation en termes de logique temporelle et la vérification statistique de modèles sont les fondements formels de l’approche. Un outil mettant en œuvre l’ensemble de l’approche a été également développé et expérimenté
The formulation of missions is the starting point to the development of Systems-of-Systems (SoS), being used as a basis for the specification, verification and validation of SoS architectures. Specifying, verifying and validating architectural models for SoS are complex tasks compared to usual systems, the inner complexity of SoS relying specially on emergent behaviors, i.e. features that emerge from the interactions among constituent parts of the SoS which cannot be predicted even if all the behaviors of all parts are completely known. This thesis addresses the synergetic relationship between missions and architectures of software-intensive SoS, giving a special attention to emergent behaviors which are created for achieving formulated missions. We propose a design approach for the architectural modeling of SoS driven by the mission models. In our proposal, the mission model is used to both derive, verify and validate SoS architectures. As first step, we define a formalized mission model, then we generate the structure of the SoS architecture by applying model transformations. Later, when the architect specifies the behavioral aspects of the SoS, we generate concrete SoS architectures that will be verified and validated using simulation-based approaches, in particular regarding emergent behaviors. The verification uses statistical model checking to verify whether specified properties are satisfied, within a degree of confidence. The formalization in terms of a temporal logic and statistical model checking are the formal foundations of the developed approach. A toolset that implements the whole approach was also developed and experimented

Стилі APA, Harvard, Vancouver, ISO та ін.

25

Norberg, Johan. "Verification techniques in the context of event-trigged soft real-time systems." Thesis, Jönköping University, JTH, Computer and Electrical Engineering, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-737.

Повний текст джерела

Анотація:

When exploring a verification approach for Komatsu Forest's control system regarding their forest machines (Valmet), the context of soft real-time systems is illuminated. Because of the nature of such context, the verification process is based on empirical corroboration of requirements fulfillment rather than being a formal proving process.

After analysis of the literature with respect to the software testing field, two paradigms have been defined in order to highlight important concepts for soft real-time systems. The paradigms are based on an abstract stimuli/response model, which conceptualize a system with inputs and output. Since the system is perceived as a black box, its internal details are hidden and thus focus is placed on a more abstract level.

The first paradigm, the “input data paradigm”, is concerned about what data to input to the system. The second paradigm, the “input data mechanism paradigm” is concerned about how the data is sent, i.e. the actual input mechanism is focused. By specifying different dimensions associated with each paradigm, it is possible to define their unique characteristics. The advantage of this kind of theoretical construction is that each paradigm creates an unique sub-field with its own problems and techniques.

The problems defined for this thesis is primarily focused on the input data mechanism paradigm, where devised dimensions are applied. New verification techniques are deduced and analyzed based on general software testing principles. Based on the constructed theory, a test system architecture for the control system is developed. Finally, an implementation is constructed based on the architecture and a practical scenario. Its automation capability is then assessed.

The practical context for the thesis is a new simulator under development. It is based upon LabVIEW and PXI technology and handles over 200 I/O. Real machine components are connected to the environment, together with artificial components that simulate the engine, hydraulic systems and a forest. Additionally, physical control sticks and buttons are connected to the simulator to enable user testing of the machine being simulated.

The results associated with the thesis is first of all that usable verification techniques were deduced. Generally speaking, some of these techniques are scalable and are possible to apply for an entire system, while other techniques may be appropriate for selected subsets that needs extra attention. Secondly, an architecture for an automated test system based on a selection of techniques has been constructed for the control system.

Last but not least, as a result of this, an implementation of a general test system has been possible and successful. The implemented test system is based on both C# and LabVIEW. What remains regarding the implementation is primarily to extend the system to include the full scope of features described in the architecture and to enable result analysis.

Då verifikationstekniker för Komatu Forests styrsystem utreds angående Valmet skogsmaskiner, hamnar det mjuka realtidssystemkontextet i fokus. Ett sådant kontext antyder en process där empirisk styrkning av kravuppfyllande står i centrum framför formella bevisföringsprocesser.

Efter en genomgång och analys av litteratur för mjukvarutestområdet har två paradigmer definierats med avsikten att belysa viktiga concept för mjuka realtidssystem. Paradigmerna är baserade på en abstrakt stimuli/responsmodell, som beskriver ett system med in- och utdata. Eftersom detta system betraktas som en svart låda är inre detaljer gömda, vilket medför att fokus hamnar på ett mer abstrakt plan.

Det första paradigmet benämns som “indata-paradigmet” och inriktar sig på vilket data som skickas in i systemet. Det andra paradigmet går under namnet “indatamekanism-paradigmet” och behandlar hur datat skickas in i systemet, dvs fokus placeras på själva inskickarmekanismen. Genom att definiera olika

dimensioner för de två paradigmen, är det möjligt att beskriva deras utmärkande drag. Fördelen med att använda denna teoretiska konstruktion är att ett paradigm skapar ett eget teoriområde med sina egna frågeställningar och tekniker.

De problem som definierats för detta arbete är främst fokuserade på indatamekanism-paradigmet, där framtagna dimensioner tillämpas. Nya verifikationstekniker deduceras och analyseras baserat på generella mjukvarutestprinciper. Utifrån den skapade teorin skapas en testsystemarkitektur för kontrollsystemet. Sedan utvecklas ett testsystem baserat på arkitekturen samt ett praktiskt scenario med syftet att utreda systemets automationsgrad.

Den praktiska miljön för detta arbete kretsar kring en ny simulator under utveckling. Den är baserad på LabVIEW och PXI-teknik och hanterar över 200 I/O. Verkliga maskinkomponenter ansluts till denna miljö tillsammans med konstgjorda komponenter som simulerar motorn, hydralik samt en skog. Utöver detta, ansluts styrspakar och knappar för att möjliggöra användarstyrning av maskinen som simuleras.

Resultatet förknippat med detta arbete är för det första användbara verifikationstekniker. Man kan generellt säga att några av dessa tekniker är skalbara och därmed möjliga att tillämpa för ett helt system. Andra tekniker är ej skalbara, men lämpliga att applicera på en systemdelmängd som behöver testas mer utförligt.

För det andra, en arkitektur har konstruerats för kontrollsystemet baserat på ett urval av tekniker. Sist men inte minst, som en följd av ovanstående har en lyckad implementation av ett generellt testsystem utförts. Detta system implementerades med hjälp av C# och LabVIEW. Det som återstår beträffande implementationen är att utöka systemet så att alla funktioner som arkitekturen beskriver är inkluderade samt att införa resultatanalys.

Стилі APA, Harvard, Vancouver, ISO та ін.

26

Zraqou, Jamal Sami. "Automated system design for the efficient processing of solar satellite images : developing novel techniques and software platform for the robust feature detection and the creation of 3D anaglyphs and super-resolution images for solar satellite images." Thesis, University of Bradford, 2011. http://hdl.handle.net/10454/5434.

Повний текст джерела

Анотація:

The Sun is of fundamental importance to life on earth and is studied by scientists from many disciplines. It exhibits phenomena on a wide range of observable scales, timescales and wavelengths and due to technological developments there is a continuing increase in the rate at which solar data is becoming available for study which presents both opportunities and challenges. Two satellites recently launched to observe the sun are STEREO (Solar TErrestrial RElations Observatory), providing simultaneous views of the SUN from two different viewpoints and SDO (Solar Dynamics Observatory) which aims to study the solar atmosphere on small scales and times and in many wavelengths. The STEREO and SDO missions are providing huge volumes of data at rates of about 15 GB per day (initially it was 30 GB per day) and 1.5 terabytes per day respectively. Accessing these huge data volumes efficiently at both high spatial and high time resolutions is important to support scientific discovery but requires increasingly efficient tools to browse, locate and process specific data sets. This thesis investigates the development of new technologies for processing information contained in multiple and overlapping images of the same scene to produce images of improved quality. This area in general is titled Super Resolution (SR), and offers a technique for reducing artefacts and increasing the spatial resolution. Another challenge is to generate 3D images such as Anaglyphs from uncalibrated pairs of SR images. An automated method to generate SR images is presented here. The SR technique consists of three stages: image registration, interpolation and filtration. Then a method to produce enhanced, near real-time, 3D solar images from uncalibrated pairs of images is introduced. Image registration is an essential enabling step in SR and Anaglyph processing. An accurate point-to-point mapping between views is estimated, with multiple images registered using only information contained within the images themselves. The performances of the proposed methods are evaluated using benchmark evaluation techniques. A software application called the SOLARSTUDIO has been developed to integrate and run all the methods introduced in this thesis. SOLARSTUDIO offers a number of useful image processing tools associated with activities highly focused on solar images including: Active Region (AR) segmentation, anaglyph creation, solar limb extraction, solar events tracking and video creation.

Стилі APA, Harvard, Vancouver, ISO та ін.

27

McCulloch, Thomas L. "Feasible Form Parameter Design of Complex Ship Hull Form Geometry." ScholarWorks@UNO, 2018. https://scholarworks.uno.edu/td/2552.

Повний текст джерела

Анотація:

This thesis introduces a new methodology for robust form parameter design of complex hull form geometry via constraint programming, automatic differentiation, interval arithmetic, and truncated hierarchical B- splines. To date, there has been no clearly stated methodology for assuring consistency of general (equality and inequality) constraints across an entire geometric form parameter ship hull design space. In contrast, the method to be given here can be used to produce guaranteed narrowing of the design space, such that infeasible portions are eliminated. Furthermore, we can guarantee that any set of form parameters generated by our method will be self consistent. It is for this reason that we use the title feasible form parameter design. In form parameter design, a design space is represented by a tuple of design parameters which are extended in each design space dimension. In this representation, a single feasible design is a consistent set of real valued parameters, one for every component of the design space tuple. Using the methodology to be given here, we pick out designs which consist of consistent parameters, narrowed to any desired precision up to that of the machine, even for equality constraints. Furthermore, the method is developed to enable the generation of complex hull forms using an extension of the basic rules idea to allow for automated generation of rules networks, plus the use of the truncated hierarchical B-splines, a wavelet-adaptive extension of standard B-splines and hierarchical B-splines. The adaptive resolution methods are employed in order to allow an automated program the freedom to generate complex B-spline representations of the geometry in a robust manner across multiple levels of detail. Thus two complementary objectives are pursued: ensuring feasible starting sets of form parameters, and enabling the generation of complex hull form geometry.

Стилі APA, Harvard, Vancouver, ISO та ін.

28

Truong, Khai Nhut. "INCA an infrastructure for capture & access supporting the generation, preservation and use of memories from everyday life /." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7167.

Повний текст джерела

Анотація:

Peoples daily lives and experiences often contain memories and information that they may want to recall again at a later time. Human memory, however, has its limitations and many times it alone may not be sufficient. People sometimes have difficulty recalling salient information and can forget important details over time. To complement what they can remember naturally, people must expend much time and manual effort to record desired content from their lives for future retrieval. Unfortunately, manual methods for capturing information are far from ideal. Over the years, ubiquitous computing researchers have constructed devices and applications to support the automated capture of live experiences and access to those records. At Georgia Tech, we have also investigated the benefits of automated capture and access in over half a dozen projects since 1995. As we encountered challenges in developing these systems, we began to understand how the difficulty of building capture and access systems can prevent exploration of the hard issues intertwined with understanding how capture impacts our everyday lives. These challenges illustrate the need for support structures in building this class of ubiquitous computing systems. This dissertation presents a set of abstractions for a conceptual framework and a focused design process that encourages designers to decompose the design of capture and access applications into a set of concerns that will be easier to develop and to manage. In addition, an implementation of the framework called the INCA Toolkit is discussed, along with a number of capture and access applications that have been built with it. These applications illustrate how the toolkit is used in practice and supports explorations of the capture and access design space.

Стилі APA, Harvard, Vancouver, ISO та ін.

29

Prat, Sophie. "Intégration de techniques de vérification par simulation dans un processus de conception automatisée de contrôle commande." Thesis, Lorient, 2017. http://www.theses.fr/2017LORIS476/document.

Повний текст джерела

Анотація:

Aujourd’hui, la conception ne porte plus sur de simples objets, mais sur des systèmes complexes, sociotechniques et ouverts. Les systèmes de conduite de procédés font partie de ce type de systèmes, où les performances du système reposent sur l’optimisation conjointe des composantes humaines et techniques. Afin de limiter la détection d’erreur tardive, il devient alors important de pouvoir effectuer des tests tout au long de la conception, sans augmenter les coûts et les délais de conception. L’objectif de nos travaux est de faciliter l’intégration de techniques de vérification par simulation, dès le début de la conception, pour des systèmes de conduite de procédés de type gestion de fluide. Pour tenir compte du caractère adaptable du système et de son évolution dans un environnement dynamique, une première contribution porte sur la démarche de vérification, basée sur la formalisation et la contextualisation des propriétés à vérifier. Puis, afin de faciliter l’obtention des modèles de simulation du procédé nécessaires à la mise en œuvre des vérifications tout au long de la conception, nous proposons une approche de génération automatisée des modèles de simulation du procédé dans le langage Modelica (modélisation multi-domaine), à partir d’un schéma P&ID (représentation de l’architecture fonctionnelle du procédé) et d’une bibliothèque d’éléments (contenant les modèles de simulation des éléments). L’implémentation de cette approche dans le cadre du flot de conception automatisée de contrôle- commande d’Anaxagore permet d’apporter une preuve de concept et une preuve d’usage de nos propositions
Nowadays, engineers have to design open, complex and sociotechnical systems. The process control systems belong to this class of systems, in which the system performance relies on the joint optimisation of technical components and human components. To avoid the late discovery of design errors, it is necessary to perform tests throughout the design without adding design costs and delays. The aim of this work is therefore to facilitate the integration of checking by simulation, from early design stage, for process control systems such as fluid management systems. Regarding the adaptable feature of the system and its evolution in a dynamic environment, a first contribution focusses on the verification approach, by modelling the requirements within the context. Then, to facilitate the obtaining of the process simulation models required for checking throughout the design, we propose an automatic generation approach of simulation models in Modelica language (multi-domain modelling), from a P&ID model (modelling of the functional architecture of the process) and a library of elements (containing the simulation models of elements). To provide a proof of concept and a proof of use of our proposals, this approach has been implemented into Anaxagore, an automated design flow for monitoring and control

Стилі APA, Harvard, Vancouver, ISO та ін.

30

Li, Juncao. "An Automata-Theoretic Approach to Hardware/Software Co-verification." PDXScholar, 2010. https://pdxscholar.library.pdx.edu/open_access_etds/12.

Повний текст джерела

Анотація:

Hardware/Software (HW/SW) interfaces are pervasive in computer systems. However, many HW/SW interface implementations are unreliable due to their intrinsically complicated nature. In industrial settings, there are three major challenges to improving reliability. First, as there is no systematic framework for HW/SW interface specifications, interface protocols cannot be precisely conveyed to engineers. Second, as there is no unifying formal model for representing the implementation semantics of HW/SW interfaces accurately, some critical properties cannot be formally verified on HW/SW interface implementations. Finally, few automatic tools exist to help engineers in HW/SW interface development. In this dissertation, we present an automata-theoretic approach to HW/SW co-verification that addresses these challenges. We designed a co-specification framework to formally specify HW/SW interface protocols; we synthesized a hybrid Büchi Automaton Pushdown System, namely Büchi Pushdown System (BPDS), as the unifying formal model for HW/SW interfaces; and we created a co-verification tool, CoVer that implements our model checking algorithms and realizes our reduction algorithms for BPDS. The application of our approach to the Windows device/driver framework has resulted in the detection of fifteen specification issues. Furthermore, utilizing CoVer, we discovered twelve real bugs in five drivers. These non-trivial findings have demonstrated the significance of our approach in industrial applications.

Стилі APA, Harvard, Vancouver, ISO та ін.

31

Junek, Martin. "Metody specifikace kyberfyzikálních systémů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-442854.

Повний текст джерела

Анотація:

The aim of this diploma thesis is to analyse the advantages and disadvantages of different types of description of cyberphysical systems. It also concerns a description of the selected method that meets most of the current requirements for CPS design. In the practical part, attention is paid to the elaboration of an example for the specification of a selected cyberphysical system.

Стилі APA, Harvard, Vancouver, ISO та ін.

32

Arief, Leonardus Budiman. "A framework for supporting automatic simulation generation from design." Thesis, University of Newcastle Upon Tyne, 2001. http://hdl.handle.net/10443/1816.

Повний текст джерела

Анотація:

Building a new software system requires careful planning and investigation in order to avoid any problems in the later stages of the development. By using a universally accepted design notation such as the Unified Modeling Language (UML), ambiguities in the system specification can be eliminated or minimised. The aspect that frequently needs to be investigated before the implementation stage can be commenced concerns the proposed system’s performance. It is necessary to predict whether a particular design will meet the performance requirement - i.e. is it worth implementing the system - or not. One way to obtain this performance prediction is by using simulation programs to mimic the execution of the system. Unfortunately, it is often difficult to transform the design into a simulation program without some sound knowledge of simulation techniques. In addition, new simulation programs need to be built each time for different systems - which can be tedious, time consuming and error prone. The currently available UML tools do not provide any facilities for generating simulation programs automatically from UML specifications. This shortcoming is the main motivation for this research. The work involved here includes an investigation of which UML design notations can be used; the available simulation languages or environments for running the simulation; and more importantly, a framework that can capture the simulation information from UML design notation. Using this framework, we have built tools that enable an automatic transformation of a UML design notation into a simulation program. Two tools (parsers) that can perform such a transformation have been constructed. We provide case studies to demonstrate the applicability of these tools and the usefulness of our simulation framework in general.

Стилі APA, Harvard, Vancouver, ISO та ін.

33

Hassan, Amro Salem Salem. "An Automated Approach for Discovering Functional Risk-Inducing Flaws in Software Designs." Thesis, North Dakota State University, 2015. https://hdl.handle.net/10365/27886.

Повний текст джерела

Анотація:

For safety critical applications, it is necessary to ensure that risk-inducing flaws do not exist in the final product. To date, many risk-based testing techniques were proposed. The majority of these techniques address flaws in the implementation. However, since the overhead of software flaws increases the later they are discovered in the development process, it is important to test for these flaws earlier in the development process. Few approaches have addressed the problem of testing for risk-inducing flaws in the design phase. These approaches are manual approaches, which makes them hard to apply on large complicated software designs. To address this problem, we propose an automated approach for testing designs for risk-inducing flaws. To evaluate our approach, we performed an experiment focusing on specifications of safety critical systems. Our results show that the proposed approach could be effective in discovering functional flaws in behavioral designs that is exposing a risk.

Стилі APA, Harvard, Vancouver, ISO та ін.

34

Serrano, José Artur Ferreira da Silva e. Vale. "Automatic generation of software design tools supporting semantics of modelling techniques." Thesis, University of Glasgow, 1997. http://theses.gla.ac.uk/7018/.

Повний текст джерела

Анотація:

A generic visual language for diagram editing has been created which may be instantiated for a particular modelling technique. The instantiated visual language is used within the generated design tool. It provides non-obtrusive guidance observing the semantics of the underlying modelling technique. The tool user is allowed to produce intermediate inconsistent states to facilitate diagram editing. A prototype, comprising a compiler for the specification language, a multi-purpose graph tool and a configurable design tool was implemented to prove the feasibility of the complete approach. The prototype compiler generates executable code. The target of the compiler is the persistent programming language Napier88. The architecture of the compiler has been designed as two separate components: a front-end (the parser), and a back-end (the code generator). This approach gives independence from the target language. The code generator comprises a number of translation rules to produce Napier88 from a VC-t specification. The prototype compiler only incorporates some of the translation rules to demonstrate that executable Napier88 can be generated automatically. The remainder of the translation rules have been applied manually to produce Napier88, to demonstrate that the rules are correct. The multi-purpose graph tool, designated as GraphTool, can be used with the class of applications using graphs as their main data structures. It provides support for visual and interactive representations of an application. The application acts as a client of the Graph-Tool. A protocol has been defined to connect the client application to the GraphTool. Any number of visual representations can be associated with the application. Maps are used for this purpose: to change the representation it is only necessary to change the map. The GraphTool includes a constraint manager used to associate constraints with the representations objects and check these at run-time. The configurable design tool has been developed as a client for the GraphTool. It includes generic components for diagram editing and a drawing canvas. The functionality of the canvas is fully provided by the GraphTool.

Стилі APA, Harvard, Vancouver, ISO та ін.

35

Chan, Chibong. "Design and implementation of software to automate reuse in component-based system engineering." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/33125.

Повний текст джерела

Анотація:

Thesis (M. Eng. and S.B.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.
Includes bibliographical references (leaf 45).
The goal of this thesis is to develop software under the SpecTRM software package for the partial automation of tasks associated with reusing SpecTRM-RL component models. The automation software is designed to aid the application of component-based system engineering in SpecTRM, mainly by reducing the amount of manual work necessary in setting up component models for simulation. My thesis will examine the properties of component models, and the common tasks associated with component-based system engineering, so as to identify areas where automation is possible, and then present the user interfaces and algorithms necessary to achieve automation. The automation software will be implemented in Java under the Eclipse platform, in order to be seamlessly integrated into the SpecTRM software package.
by Chibong Chan.
M.Eng.and S.B.

Стилі APA, Harvard, Vancouver, ISO та ін.

36

Morgan, Clifford Owen. "Development of computer aided analysis and design software for studying dynamic process operability." Thesis, Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/10187.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

37

Höflinger, Kilian. "Design of an Automatic Specification-based Test-framework for On-board Software of Satellites." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-175864.

Повний текст джерела

Анотація:

Satelliter är sofistikerade och därför komplicerade konstruktioner som kräver tvärvetenskapligt lagarbete mellan olika experter från olika akademiska discipliner. Integrationen av specifika nyttolastkomponenter, liksom vetenskapliga experiment, med inbyggd programvara för satelliter är mycket utmanande. Domänexperten, som ägare av nyttolastkomponenten, besitter detaljerade insikter om hans eller hennes del, men saknar tillräckliga kunskaper i programmering för att implementera den i den inbyggda programvaran. Programmeraren är i stånd att skriva rätt kod för den inbyggda programvaran, men är oerfaren med nyttolastkomponenten. Denna rapport beskriver utformningen och genomförandet av ett automatisk, specifikationsbaserat testramverk för inbyggd programvara för satelliter för att överbrygga kunskaps- och kommunikationsklyftan mellan programmeraren och domänexperten. Modell- och testdriven utveckling är i fokus för testramverket. Med hjälp av ett domänspecifikt språk kan domänexperten modellera en specifikation i formell notation, som representerar potentiella användningsscenarier av komponenten. Dessa scenarier är automatiskt översatta till kompilerbara testfall i C++, som hjälper programmeraren att kontrollera den funktionella korrektheten av den inbyggda programvaran för nyttolastkomponenten när han eller hon programmerar den.
Satellites are sophisticated and therefore complicated constructs that require interdisciplinary teamwork of various experts of different academic disciplines. The integration of specific payload components, like scientific experiments, in the on-board software of the satellite is very challenging. The domain expert, as the owner of the payload component, possesses detailed insights on his or her component, but lacks sufficient programming skills to implement it in the on-board software. The programmer is able to write proper code for the onboard software, but is inexperienced with the payload component of the domain expert. This report describes the design and the implementation of an automatic specification-based test-framework for on-board software of satellites to bridge the knowledge and communication gap between the programmer and the domain expert. Model- and test-driven development are in the focus of the testframework. With the help of a domain-specific language, the domain expert is able to model a specification in formal notation, representing potential use-case scenarios of the component. These scenarios are automatically translated to compilable C++ test cases, which help the programmer to verify the functional correctness of the on-board software implementation of the payload component while he or she is programming it.

Стилі APA, Harvard, Vancouver, ISO та ін.

38

Ungureanu, George. "Automatic Software Synthesis from High-Level ForSyDe Models Targeting Massively Parallel Processors." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-127832.

Повний текст джерела

Анотація:

In the past decade we have witnessed an abrupt shift to parallel computing subsequent to the increasing demand for performance and functionality that can no longer be satisfied by conventional paradigms. As a consequence, the abstraction gab between the applications and the underlying hardware increased, triggering both industry and academia in several research directions. This thesis project aims at analyzing some of these directions in order to offer a solution for bridging the abstraction gap between the description of a problem at a functional level and the implementation on a heterogeneous parallel platform using ForSyDe – a formal design methodology. This report treats applications employing data-parallel and time-parallel computation, regards nvidia CUDA-enabled GPGPUs as the main backend platform. The report proposes a heuristic transformation-and-refinement process based on analysis methods and design decisions to automate and aid in a correct-by-design backend code synthesis. Its purpose is to identify potential data parallelism and time parallelism in a high-level system. Furthermore, based on a basic platform model, the algorithm load-balances and maps the execution onto the best computation resources in an automated design flow. This design flow will be embedded into an already existing tool, f2cc (ForSyDe-to-CUDA C) and tested for correctness on an industrial-scale image processing application aimed at monitoring inkjet print-heads reliability.

Стилі APA, Harvard, Vancouver, ISO та ін.

39

Lee, Seung Man. "Agent-based simulation of socio-technical systems : software architecture and timing mechanisms." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/24351.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

40

Curri, Agustin. "Standard Software Template for Automatic Machines: Design, Implementation and Validation Through the Virtual Commissioning Approach." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.

Знайти повний текст джерела

Анотація:

The objective of this project is to realize a reusable Software Template for the Packaging Division of the Körber Tissue Business Area. The template will be the software base of the development for all the new concept machines of the factory. It should be compliant with the OMAC PackML Standard to provide a completely general and reusable solution, including user, recipe and signal management, easy to integrate in existing production lines. In order to provide a practical ready to use solution, the software is developed analysing a new going on project on a new bundler machine for the tissue packaging area. In the first stage, the process that the machine needs to carry out and all the functionalities involved are studied. Then, the structure of the software is decided and the template is developed, including concepts of modularity and reusability. In the second stage of the development process, a study on the trajectory planning for automatic machines is made, in order to generate a software structure that takes into account the needs of a modern machine. The VDI Guideline 2143 is considered to have a standard approach for the trajectory planning procedure. The mechanical details of the new bundler machine are still under development. For this reason, a simulation model of the machine is created. It can already be used to test and compare different software concepts. Thanks to the virtual commissioning, the physical behaviour of a relevant part of the machine and the product flow have been simulated digitally. The simulation allowed to test the implemented template, coded into the PLC, for the single mechanical components and their synchronized movements in a safe virtual environment.

Стилі APA, Harvard, Vancouver, ISO та ін.

41

Rudraiah, Dakshinamurthy Amruth. "A Compiler-based Framework for Automatic Extraction of Program Skeletons for Exascale Hardware/Software Co-design." Master's thesis, University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5695.

Повний текст джерела

Анотація:

The design of high-performance computing architectures requires performance analysis of large-scale parallel applications to derive various parameters concerning hardware design and software development. The process of performance analysis and benchmarking an application can be done in several ways with varying degrees of fidelity. One of the most cost-effective ways is to do a coarse-grained study of large-scale parallel applications through the use of program skeletons. The concept of a "program skeleton" that we discuss in this paper is an abstracted program that is derived from a larger program where source code that is determined to be irrelevant is removed for the purposes of the skeleton. In this work, we develop a semi-automatic approach for extracting program skeletons based on compiler program analysis. We demonstrate correctness of our skeleton extraction process by comparing details from communication traces, as well as show the performance speedup of using skeletons by running simulations in the SST/macro simulator. Extracting such a program skeleton from a large-scale parallel program requires a substantial amount of manual effort and often introduces human errors. We outline a semi-automatic approach for extracting program skeletons from large-scale parallel applications that reduces cost and eliminates errors inherent in manual approaches. Our skeleton generation approach is based on the use of the extensible and open-source ROSE compiler infrastructure that allows us to perform flow and dependency analysis on larger programs in order to determine what code can be removed from the program to generate a skeleton.
M.S.
Masters
Electrical Engineering and Computer Science
Engineering and Computer Science
Computer Science

Стилі APA, Harvard, Vancouver, ISO та ін.

42

Sagebaum, Max [Verfasser], and Nicolas R. [Akademischer Betreuer] Gauger. "Advanced techniques for the semi automatic transition from simulation to design software / Max Sagebaum ; Betreuer: Nicolas R. Gauger." Kaiserslautern : Technische Universität Kaiserslautern, 2018. http://d-nb.info/1168229413/34.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

43

Psotti, Andrea. "Design of a new Human Machine Interface for bar feeding automatic machines towards Industry 4.0 smart factories." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

Знайти повний текст джерела

Анотація:

Un caricatore di barre è una macchina automatica solitamente installata a valle di una macchina utensile, il suo compito è di fornire un flusso costante e continuo di materiale da lavorare al tornio. Questa macchina è di estrema importanza all'interno di una torneria meccanica in quanto è responsabile dell’autonomia del processo di lavorazione; per questa ragione le principali caratteristiche di un caricatore di barre sono: stabilità, errori e problemi devono presentarsi raramente, robustezza, la macchina infatti deve essere in grado di tollerare malfunzionamenti sia elettrici che meccanici, e, infine, un caricatore deve sempre essere correttamente interfacciato con la macchina utensile che rifornisce. IEMCA è una società italiana che progetta e produce dal 1961 caricatori automatici di barre. L’obiettivo finale è di formulare una proposta per una nuova interfaccia uomo-macchina da installare e vendere sulle nuove macchine prodotte da IEMCA, considerando i concetti dell’Industry 4.0. Il processo di progettazione inizierà con un esame tecnico della piattaforma esistente, analizzandone il principio di funzionamento. Successivamente verrà svolta un’estensiva ricerca di mercato nei mercati italiano, tedesco e statunitense con il fine di comprendere i punti di forza e debolezza dell’attuale interfaccia, i punti di forza e debolezza di altre interfacce uomo-macchina per caricatori di barre presenti sul mercato e investigando possibili sviluppi futuri provenienti da richieste del mercato nell’industria delle macchine utensili e studiando struttura e caratteristiche dell’Industry 4.0. Infine si creerà un prototipo di software per l’interfaccia uomo-macchina che ingloberà tutti gli aspetti e le funzionalità emerse dalla ricerca e dalle fasi del processo di progettazione. Se gli obiettivi saranno raggiunti la nuova soluzione HMI sarà installata e venduta su tutte le nuove macchine prodotte da IEMCA, quindi su tutti i caricatori di barre, venduti in tutto il globo.

Стилі APA, Harvard, Vancouver, ISO та ін.

44

Hsu, Ssuta S. "Automatic Meshing of Free-Form Deformation Solids." BYU ScholarsArchive, 1989. https://scholarsarchive.byu.edu/etd/3453.

Повний текст джерела

Анотація:

Development of computer models and subsequent finite element analysis, are important aspects of modern engineering design. In this process, the geometry creation and finite element analysis software are well developed; however, the process of discretizing a geometry into a proper finite element model is time consuming and tedious. The work presented here uses the free-form deformation method to create smooth solid models, and invokes a solid subdivision and transition method to generate the hexahedron finite elements. The combination of these two techniques provides an automatic mesh generator that is easy to use, creates acceptable hexahedron elements for finite element analysis, and can model basically any complex shape.

Стилі APA, Harvard, Vancouver, ISO та ін.

45

Kureksiz, Funda. "A Real Time Test Setup Design And Realization For Performance Verification Of Controller Designs For Unmanned Air Vehichles." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/2/12609393/index.pdf.

Повний текст джерела

Анотація:

In this thesis, a test platform based on real-time facilities and embedded software is designed to verify the performance of a controller model in real time. By the help of this platform, design errors can be detected earlier and possible problems can be solved cost-effectively without interrupting the development process. An unmanned combat air vehicle (UCAV) model is taken as a plant model due to its importance in current and future military operations. Among several autopilot modes, the altitude hold mode is selected since it is an important pilot-relief mode and widely used in aviation. A discrete PID controller is designed in MATLAB/Simulink environment for using in verification studies. To control the dynamic system in wide range, a gain scheduling is employed where the altitude and velocity are taken as scheduling variables. Codes for plant and controller model are obtained by using real time workshop embedded coder (RTWEC) and downloaded to two separate computers, in which xPC kernel and VxWorks operating system are run, respectively. A set of flight test scenarios are generated in Simulink environment. They are analyzed, discussed, and then some of them are picked up to verify the platform. These test scenarios are run in the setup and their results are compared with the ones obtained in Simulink environment. The reusability of the platform is verified by using a commercial aircraft, Boeing 747, and its controller models. The test results obtained in the setup and in Simulink environment are presented and discussed.

Стилі APA, Harvard, Vancouver, ISO та ін.

46

Francesca, Gianpiero. "A modular approach to the automatic design of control software for robot swarms: From a novel perspective on the reality gap to AutoMoDe." Doctoral thesis, Universite Libre de Bruxelles, 2017. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/256252.

Повний текст джерела

Анотація:

The main issue in swarm robotics is to design the behavior of the individual robots so that a desired collective behavior is achieved. A promising alternative to the classical trial-and-error design approach is to rely on automatic design methods. In an automatic design method, the problem of designing the control software for a robot swarm is cast into an optimization problem: the different design choices define a search space that is explored using an optimization algorithm. Most of the automatic design methods proposed so far belong to the framework of evolutionary robotics. Traditionally, in evolutionary robotics the control software is based on artificial neural networks and is optimized automatically via an evolutionary algorithm, following a process inspired by natural evolution. Evolutionary robotics has been successfully adopted to design robot swarms that perform various tasks. The results achieved show that automatic design is a viable and promising approach to designing the control software of robot swarms. Despite these successes, a widely recognized problem of evolutionary robotics is the difficulty to overcome the reality gap, that is, having a seamless transition from simulation to the real world. In this thesis, we aim at conceiving an effective automatic design approach that is able to deliver robot swarms that have high performance once deployed in the real world. To this, we consider the major problem in the automatic design of robot swarms: the reality gap problem. We analyze the reality gap problem from a machine learning perspective. We show that the reality gap problem bears a strong resemblance to the generalization problem encountered in supervised learning. By casting the reality gap problem into the bias-variance tradeoff, we show that the inability to overcome the reality gap experienced in evolutionary robotics could be explained by the excessive representational power of the control architecture adopted. Consequently, we propose AutoMoDe, a novel automatic design approach that adopts a control architecture with low representational power. AutoMoDe designs software in the form of a probabilistic finite state machine that is composed automatically starting from a number of pre-existing parametric modules. In the experimental analysis presented in this thesis, we show that adopting a control architecture that features a low representational power is beneficial: AutoMoDe performs better than an evolutionary approach. Moreover, AutoMoDe is able to design robot swarms that perform better that the ones designed by human designers. AutoMoDe is the first automatic design approach that it is shown to outperform human designers in a controlled experiment.
Doctorat en Sciences de l'ingénieur et technologie
info:eu-repo/semantics/nonPublished

Стилі APA, Harvard, Vancouver, ISO та ін.

47

Mutigwe, Charles. "Automatic synthesis of application-specific processors." Thesis, Bloemfontein : Central University of Technology, Free State, 2012. http://hdl.handle.net/11462/163.

Повний текст джерела

Анотація:

Thesis (D. Tech. (Engineering: Electrical)) -- Central University of technology, Free State, 2012
This thesis describes a method for the automatic generation of appli- cation speci_c processors. The thesis was organized into three sepa- rate but interrelated studies, which together provide: a justi_cation for the method used, a theory that supports the method, and a soft- ware application that realizes the method. The _rst study looked at how modern day microprocessors utilize their hardware resources and it proposed a metric, called core density, for measuring the utilization rate. The core density is a function of the microprocessor's instruction set and the application scheduled to run on that microprocessor. This study concluded that modern day microprocessors use their resources very ine_ciently and proposed the use of subset processors to exe- cute the same applications more e_ciently. The second study sought to provide a theoretical framework for the use of subset processors by developing a generic formal model of computer architecture. To demonstrate the model's versatility, it was used to describe a number of computer architecture components and entire computing systems. The third study describes the development of a set of software tools that enable the automatic generation of application speci_c proces- sors. The FiT toolkit automatically generates a unique Hardware Description Language (HDL) description of a processor based on an application binary _le and a parameterizable template of a generic mi- croprocessor. Area-optimized and performance-optimized custom soft processors were generated using the FiT toolkit and the utilization of the hardware resources by the custom soft processors was character- ized. The FiT toolkit was combined with an ANSI C compiler and a third-party tool for programming _eld-programmable gate arrays (FPGAs) to create an unconstrained C-to-silicon compiler.

Стилі APA, Harvard, Vancouver, ISO та ін.

48

Magnini, Matteo. "An information theory analysis of critical Boolean networks as control software for robots." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23062/.

Повний текст джерела

Анотація:

This work is an analysis of critical random Boolean networks used as control software for robots. The main goal is to find if there are relations between information theory measures on robot's sensors and actuators and the capability of the robot to achieve a particular task. Secondary goals are to verify if just the number of nodes of the networks is significant to obtain better populations of controllers for a given task and if a Boolean network can perform well in more than one single task. Results show that for certain tasks there is a strongly positively correlation between some information theory measures and the objective function of the task. Moreover Boolean networks with an higher number of nodes tend to perform better. These results can be useful in the automatic design process of control software for robots. Finally some Boolean networks from a random generated population exhibit phenotypic plasticity, which is the ability to manifest more phenotypes from the same genotype in different environments. In this scenario it is the capability of the same Boolean network (same functions and connections) to successfully achieve different tasks.

Стилі APA, Harvard, Vancouver, ISO та ін.

49

Keyvani, Ali. "Modular Fixture Design for BIW Lines Using Process Simulate." Thesis, University West, Department of Engineering Science, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-1613.

Повний текст джерела

Анотація:

The unchangeable need of securing and locating parts during different manufacturing processes turned the fixtures to key elements in many part production industries. The iterations between design engineers and manufacturing planners because of late collision detection of the part/fixtures with robots cost a lot of time and money. The lead-time can be reduced by developing tools and/or methods for early verification of the fixtures during the simultaneous engineering phase. Different aspects of fixture designing, modeling and simulating is investigated as a base step to recognize the best practice work to do fixture planning in Process Simulate integrated PLM environment. The aim of the project is to use Process Simulate to design and validate modular fixtures at the same time and in a single environment. It also aims to investigate the possibility of adding kinematics, sensors, and actuating signals to the fixtures and utilize them to model the fixture behavior in a larger simulation study. The project narrows down its focus on the fixtures designed for robotic applications specifically in Automotive Body in White lines without losing generality. The document type stated at the title page and in the header of this page is master thesis work.

Стилі APA, Harvard, Vancouver, ISO та ін.

50

Harrath, Nesrine. "A stepwise compositional approach to model and analyze system C designs at the transactional level and the delta cycle level." Thesis, Paris, CNAM, 2014. http://www.theses.fr/2014CNAM0957/document.

Повний текст джерела

Анотація:

Les systèmes embarqués sont de plus en plus intégrés dans les applications temps réel actuelles. Ils sont généralement constitués de composants matériels et logiciels profondément Intégrés mais hétérogènes. Ces composants sont développés sous des contraintes très strictes. En conséquence, le travail des ingénieurs de conception est devenu plus difficile. Pour répondre aux normes de haute qualité dans les systèmes embarqués de nos jours et pour satisfaire aux besoins quotidiens de l'industrie, l'automatisation du processus de développement de ces systèmes prend de plus en plus d'ampleur. Un défi majeur est de développer une approche automatisée qui peut être utilisée pour la vérification intégrée et la validation de systèmes complexes et hétérogènes.Dans le cadre de cette thèse, nous proposons une nouvelle approche compositionnelle pour la modélisation et la vérification des systèmes complexes décrits en langage SystemC. Cette approche est basée sur le modèle des SystemC Waiting State Automata (WSA). Les SystemC Waiting State Automata sont des automates permettant de modéliser le comportement abstrait des systèmes matériels et logiciels décrits en SystemC tout en préservant la sémantique de l'ordonnanceur SystemC au niveau des cycles temporels et au niveau des delta-cycles. Ce modèle permet de réduire la complexité de la modélisation des systèmes complexes due au problème de l'explosion combinatoire tout en restant fidèle au système initial. Ce modèle est compositionnel et supporte le rafinement. De plus, il est étendu par des paramètres temps ainsi que des compteurs afin de prendre en compte les aspects relatifs à la temporalité et aux propriétés fonctionnelles comme notamment la qualité de service. Nous proposons ensuite une chaîne de construction automatique des WSAs à partir de la description SystemC. Cette construction repose sur l'exécution symbolique et l'abstraction des prédicats. Nous proposons un ensemble d'algorithmes de composition et de réduction de ces automates afin de pouvoir étudier, analyser et vérifier les comportements concurrents des systèmes décrits ainsi que les échanges de données entre les différents composants. Nous proposons enfin d'appliquer notre approche dans le cadre de la modélisation et la simulation des systèmes complexes. Ensuite l'expérimenter pour donner une estimation du pire temps d'exécution (worst-case execution time (WCET)) en utilisant le modèle du Timed SystemC WSA. Enfin, on définit l'application des techniques du model checking pour prouver la correction de l'analyse abstraite de notre approche
Embedded systems are increasingly integrated into existing real-time applications. They are usually composed of deeply integrated but heterogeneous hardware and software components. These components are developed under strict constraints. Accordingly, the work of design engineers became more tricky and challenging. To meet the high quality standards in nowadays embedded systems and to satisfy the rising industrial demands, the automatization of the developing process of those systems is gaining more and more importance. A major challenge is to develop an automated approach that can be used for the integrated verification and validation of complex and heterogeneous HW/SW systems.In this thesis, we propose a new compositional approach to model and verify hardware and software written in SystemC language. This approach is based on the SystemC Waiting State Automata (WSA). The SystemC Waiting State Automata are used to model the abstract behavior of hardware or software systems described in SystemC. They preserve the semantics of the SystemC scheduler at the temporal and the delta-cycle level. This model allows to reduce the complexity of the modeling process of complex systems due to the problem of state explosion during modeling while remaining faithful to the original system. The SystemC waiting state automaton is also compositional and supports refinement. In addition, this model is extended with parameters such as time and counters in order to take into account further aspects like temporality and other extra-functional properties such as QoS.In this thesis, we propose a stepwise approach on how to automatically extract the SystemC WSAs from SystemC descriptions. This construction is based on symbolic execution together with predicate abstraction. We propose a set of algorithms to symbolically compose and reduce the SystemC WSAs in order to study, analyze and verify concurrent behavior of systems as well as the data exchange between various components. We then propose to use the SystemC WSA to model and simulate hardware and software systems, and to compute the worst cas execution time (WCET) using the Timed SystemC WSA. Finally, we define how to apply model checking techniques to prove the correctness of the abstract analysis

Стилі APA, Harvard, Vancouver, ISO та ін.

Дисертації з теми "Automated software design"

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями